Hi! New member here. Been lurking for a while (I've learned so much already!), but I thought I'd weigh in here. Symptoms of CO2 exposure include increased breathing rate, dizziness, elevated heartrate, chest "heaviness", headache, visual disturbances. I think that "visual disturbances" does not refer to irritation, but rather seeing spots, or having "tunnel vision". In a situation like yours, it would be likely that if there were excess CO2 in your office, any problems you would have would be due to the displacement of oxygen by CO2 in the room, rather than the CO2 itself. I'd recommend that any time you are using tanks of CO2, you make sure to have a source of fresh air. Displacement of oxygen would cause the same symptoms as above, with drowsiness, as well, and, in severe cases death is a possibility (as would be obvious from breathing air that lacks enough oxygen). Just in case, definitely check your system for leaks, esp. if you have no ventilation. Meghan On Thu, Jan 7, 2010 at 10:09 AM, Jeff <jeff@gotperk.com> wrote: > I have my 260g with direct co2 injection in my enclosed office which is > only > about 12x18 with no ventilation; my eyes are burning today; has anyone had > any trouble being in close proximity to their tanks on extended periods > (8-10hrs) with co2? Thanks for your help, Jeff A. > > > > > > > > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member > _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member